Internal-combustion motor.



To all whom 21% may conccm:

BANIEL B. MEDfiJl'ICll-I, 8F BUEGHEL, KENTUGKY, ASSIGNOR TO HIMSELF, PENDLETON J. B. IPABENTEAU, JOHN' B. WEIGHT, AND GLIVER H. KELSALL, F LOUISVILLE,

KENTUCKY, A; IPABTHEItmHIP.

mvesuszscnnusuien iOTGR.

' Be it/known that 1, Damn B Mnmmcn, a citizen of the United States, end resident of Buechel, county of Jefferson, and State of Kentucky, have invented certain new and useful Improvements in in ternal 11cm bustion Motors, of which the icllcwing is 'a specification.

The object .of my invention. is to improve and simplify the valve .u e mism. and produce an efficient device pcsitively operated at all times; Without the use of springs and hence adapted to increase the iliciei'icy cf the motor and render the operation of the valves practically noiseless. This l have accomplished by gc revidi-ug, superimposed 'vulve plates each prcvided with slets oropcnings corresponding with the intake and exhaust ports-0f th;@, .cvlinder and adapted by the reciprocsticn of the pistes to open andclose said ports periodicelly in accord ance w th ,jthe usual preletice in new cycle f .type of combustion meters. My arrange ment of the valve plate-s nQt-zoi p -eliminates noise but fthepletes present an extent of;

surface that reduces Wee" end the possi.

'bility of leakage 1- Furtherit possible more my lconstructicu lwllim. to compensate for any vicar c plates, and to surround the vstvo plates by "water so that during; operation they are kept cool thus avo ding enyhnrnmg"ct th valve openings.

' iinconnection with. a. tour cycle motor although it will be understood that [1t may be use,

- 'Preferably I have shown my invention,

1; other types for which itis found add-p zibie. .With'the foregeiiig, and other, objects in view the'inve'ntien consists of: ,the novel constructidn illustrated in the accompanying gdrawlngs which form. a part 01: this speci-' fication ill-'WlliCll is set forth an cmh0dimentot the lnvention, but it IS tube under z a vertical section, with parts Fig. 3, ,a plan v stood tha't such chzinges and variations may be resorted to es come within the scope 01? the cleimeppendcd hereunto.

In the drawing, in which like reference numerals indicate like parts in the several views; Figure l, is e front elemtion; Fig. 2, in elevation,

stroke; 'isverse the with the motor "secticn on line of: l.

' is adapted torotate.

chamber.

Speciiicuticn of Letters mm. 1 PatentedMay 22, 19 7; Application filed iiuly 13,1914. Serial 33170.. $56,584. i

chamber wall broken away; Fig. '6, an elevet-ion of the inner slide valve; Fig. 7, an elevation of the outer slide valve; Fig. 8,

:1 dovcicpinent of; the valve movement for the four cycle stroke. p

in the drmi-ing s, l designates the mimic-chamber in which a crank-shaft -3 designates the cylinder inwvh'ich a piston -4-'is adapted to reciprocate. The piston is connected to a crank -5 by a connecting rod -6-- in the usual manner. The cylinder is made double, or provided with a surrounding space -77 forming a water jacket in: order to permit circulation of water about the cylinder an valves. One side of the cylihder is'extended and provided with uvertical recess --9-- which in CGI1U11Ct1OI1 with a cover .12-, secured on the cylinder at 13, forms a valve The cover 12 has a space 14- forming a water jucketwhich communicates with the space 7". A. vertical rib, or partition l5-- separates the upper portion of the valve chamber. into two parts,

or sections. The cylinder is provided with two radially extending'openings', or ports .-18, '1.9 of which one, 18, is' the inlet port for the entrance of gas to the cylinder, and thev other, 19, the exhaust port for the escape of the burned gaws after the explosion. These ports are adapted t0 register with corresponding openings through the cover 12 which are connected in the usual'manner with supply and exheust pipes. Two superimposed plates, or valve members -10, 11-- are "loosely mounted in the chsmbcc 9 and adapted for reciprocation therein, these plates are each provided with a" vertical slot 11"- adulpted to embrace the'rib 15. Each velvet member, or plate 10 and 11 is provided;

' with two or more openings located in such position in the length of the respective plate that they may serve to open and close the ports 18 and 19 at thefproper time duriug 'the four strokes as hereinafter more fully described- Openings -20, '21 in the valve slides are arranged to be brought into register with each other and with the port 18 to open-said pert fo'ii the admission of the explosive m1XtuI6,- zt11d openings 22,-23- are adapted to be brought into register to open the exhaust port at the desired time to permit the escape of the burned gases after explosion. It will be observed that from the arrangement of the two sets of openings 20, 21 and '22, 23, that when the inlet port is fully open the openings 22 and 23 will be out of register and the exhaust port will be closed, and that .when the openings 22 and 23 are in register with each other and with the exhaust port 19, thus opening the exhaust port, the openings 20 and 21 will be out of register and the inlet port closed. The valve members may be reciprocated in any suitable manner to obtain the desired result, but I havehere shown the respective members as connected by means of connect-. I v r h i mg rods -2' l, 2o to'cranks -26, 21-

on a shaft 28- mounted in the crank case parallel with the crank shaft 5 and adapted to be driven therefrom. Any suitable means may be employed to drive the valve shaft from the crank shaft so long as the proper relation between the rotation of the crank shaft and the proper opening and closing of the inlet and exhaust ports is observed. As illustratcda sprocket wheel 29 1s secured on the valveshaft and a sprocket -30- secured on the' c'ank shaft 2, a sprocket chain 3l fori ning the driving connection between them, the relation between the sprockets 29 and 30 is such that it requires two complet revolutions of the crank shaft 2 for one of the valve shaft 28. The cranks on the valve shaft areset at an angle of approximately 90 degreesresented by the upper line of small rectan-' gles, while the openings 2'2 and 23, in said slides, for the exhaust port are represented by the lower line of rectangles. The. position of the inlet and exhaust ports 18 and '19 is indicated by the parallel lines extending horizontally across the lines of rectangles representing the valve openings in the slides. Studying this figure the various movements of the valve slides during the' four strokes can be readily traced. Assumingthe posit-ion of-the piston 4 to be at the upper end of its stroke, ready to descend, with theintake valve just begin ning to open, this point being indicated by the rectangles at the left end ofthe lower line of development. .Followipg the tie-- velopment from left to right, it will be seen that the small rectangles, from step to step, are brought to overlap more and more in the field of or between the lines farther out of alinement with the inlet port until the piston has returned to its uppermost position, completing the eon'ipression stroke, after which the explosion takes place, this point being indicatml by the line C in Fig. 8. Continuing to trace the movement of the inlet openings through the explosion and exhaust strokes, it will be seen that the openings 20 and 21 are gradually brought back to the position in which the inlet valve begins to open for a repetition of the cycle-this position being indicated on the line E which corresponds with the position of the valve openings on the line A at the left end of the figure. Similarly tracing the movements of the valve opening with relation to the exhaust port, it will be seen from a study 10f the upper development in 'Fig. 8 that the exhaust port begins to open toward the end of the explosion stroke or just after the beginning of the up stroke of the piston on the exhaust stroke, the beginning, of which is indicated on the line D. Further tracing of the opening of the exhaust port from the line D will show that it isbrought to full oi'iening and then gradually closed, complete closure however not taking place until after the inlet port begins to open for the next stroke as will be seen by the position of the rec tangles at the left end of the-lower line of development. It will thus be seen that during the operation of the motor, the exhaust port will be. closed during the intake stroke, while the inlet port is open and gases are being drawn into the cylinder. During the compression stroke or during the first up stroke of the piston as the gases are compressed, both inlet and exhaust ports will be closed and will remain closed during the explosion stroke, after which the exhaust port will begin to open and will be fully opened during the up stroke of the piston when the burnedgases will be forced out after which the cycle will again be repeated.

It is thought that the manifold advantages of my invention, and its construction and operation will be thoroughly understood from the foregoing without more extended description and, -I claim;

In an internal combustion motor. the combination of a cylinder having exhaust furcation in said valves, each of said plates,

' having an opening in each branch thereof,

the openings'in one plate'being in lateral alinemen-t, while those in the other plate are not in lateral alinement, and means for reciprocating said valves to aline the respective openlngs therethrough wlth each other and with the exhaust and llltlkQPOltS.

DANIEL B. MEDANIUH. Witnesses W. B. MUNN LL. 

